X-ray magnetic linear dichroism of Fe-Ni alloys on Cu(111)

T. F. Johnson, S. Chiang, Y. Sato, D. A. Arena, S. A. Morton, M. Hochstrasser, J. G. Tobin, J. D. Shine, J. A. Giacomo, G. E. Thayer, D. P. Land, X. D. Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We have prepared Fe xNi 1-x multilayers on Cu(111) in order to learn how to control the structure and magnetism of these thin alloy films, which are relevant to the giant magnetoresistance (GMR) effect used in magnetic disk drive heads. Using the Spectromicroscopy Facility (7.0.1.2) on Undulator Beamline 7.0 at the Advanced Light Source, we have measured X-ray magnetic linear dichroism (XMLD) signals from both Fe and Ni 3p lines for fourteen different thin Ni-Fe alloy films on Cu(111), with Fe concentration ranging from 9% to 84% and for a variety of film thicknesses. The Curie temperature for all of these samples was in the range 200K to 500K. For many of these films, the Curie temperature was considerably lower than was previously seen for similar films deposited on Cu(100). For a particular Fe concentration x, the Curie temperature increases with alloy film thickness. For a specific film thickness, the Curie temperature has a maximum near x≈0.4.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsH Borg, K Bussmann, W Egelhoff JR, L Hesselink, S Majetich
Volume674
StatePublished - 2001
EventApplications of Ferromagnetic and Optical Materials, Storage and Magnotoelectronics - San Francisco, CA, United States
Duration: Apr 16 2001Apr 20 2001

Other

OtherApplications of Ferromagnetic and Optical Materials, Storage and Magnotoelectronics
CountryUnited States
CitySan Francisco, CA
Period4/16/014/20/01

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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    Johnson, T. F., Chiang, S., Sato, Y., Arena, D. A., Morton, S. A., Hochstrasser, M., Tobin, J. G., Shine, J. D., Giacomo, J. A., Thayer, G. E., Land, D. P., & Zhu, X. D. (2001). X-ray magnetic linear dichroism of Fe-Ni alloys on Cu(111). In H. Borg, K. Bussmann, W. Egelhoff JR, L. Hesselink, & S. Majetich (Eds.), Materials Research Society Symposium - Proceedings (Vol. 674)